Wear-compensating means for knotting mechanisms.



W. PARLIAMENT.

WEAR GOMPENSATING MEANS FOR KNOTTING MECHANISMS.

APPLIOATION FILED APR. 20, 1914.

1,104,999, Patented July 28, 1914.

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WALTER PARLIAMENT, or warn nrown, son'rrrnaxorai WEAB-GOMPENSATING MEANS FOR KNOTTING MECHANISMS. g

To all whom it may concern Be it known that I, WALTER PARLIAMENT, a citizen of the United States, residing at Watertown, in the county of Codington and State of South Dakota, have invented certain new and useful Improvements in Near- Compensating Means for Knotting Mechanisms; and I do declare the following to be a full, clear, and exact description of the invention, such as wlll enable others skilled in the art to which it appertains to make and use the same.

My invention relates broadly to improvements in self binding reapers and more particularly to the knotting mechanisms thereof.

It is a well known fact that with the ordi nary form of knotting mechanism nowcommonly employed, the various pinions and gears which drive the twine holding disks, are subjected to excessive wear and on account of this wear, the disks do not properly operate for clamping the twine while the same is being passed around the bundle by the needle.

It is to overcome the above set forth difiiculties that I have provided my improvement, the same consisting in adjustably securing the various pinions, carried by the binder head, upon their respective shafts, thereby allowing any wear to be readily compensated for and causing the twine holding disks to properly operate for clamping the twine at predetermined intervals.

With this object in view, the invention resides in certain novel features of construction and combination herein described and claimed and shown in the drawings where- Figure 1 is a perspective view of a binder head showing more particularly the arrangement of the twine holding disks and the various pinions to which my invention is applied; Fig. 2 is a detail vertical section through a portion of the worm shaft and its drive pinion; and Fig. 3 is a detail horizontal section taken upon the line 3-3 of Fig. 2.

In the accompanying drawings, I have illustrated a binder head II including the usual horizontal bearing B through which a drive shaft (not shown) carrying a mutilated gear (not shown,) is revolubly mounted, the usual twine holding disks D worm gear W for driving the same, worm Ill?v for 1 Specification of Letters Patent. i .Patent ed J 1y 28 1914, Application filed April 20, 1914. Serial No. 833,219.

driving the gear W and mounted upon'the usual wormshaft S which carries a mutilated pinion P on its upper end. The head H further includes the usual knotting bill b and bevel pinion p'for driving the same. The parts so far described are ofcommon constriiction-and a further description thereof is not thought to be necessary. As hereinbefore suggested, wear of the var ous plnions, causes the disks D'tofmove 1n improper relation to the non-rotatable shoe l) between the two, thus. causing the machine to produce loosely tied bundles. It will beclearly understood that merely. varying the relations offthe pinion P or that of the worm gear IV, in respect to their respective shafts, will overcome this. difiiculty provided the same be turned in the proper direction. As simple and efficient means of accomplishing this, I contemplate providing either the shaft of the worm gear W or the worm shaft S, with a transverse key and providing the gears on said shafts with a number of radially projecting notches in which the projecting ends of said key are adapted to rest, thus allowing the relation of said gears in respect to their shafts,'to be varied.

As the construction employed in connection with the gear W and the pinion is identical, I have illustrated and described in detail, the means of connecting the pinion P to the worm shaft S, said means consisting, as above stated, in providing the upper portion of the shaft S with a transverse key 1 which projects from the opposite sides of said shaft and is adapted to engage a numend of said shaft S and having a washer 4 interposed between its head 5 and the upper surface of said pinion P. Thus it will be seen that said pinion 1s rigidly'locked'in relation to the shaft S but that this relation may be varied simply by removing the screw 3 raising said pinion and turning it in the proper direction, whereupon, it maybe again lowered to cause the key 1 toenter other notches 2. When now, the screw 3 is again inserted, it will be seen that the pinion is again rigidly keyed to its shaft. I 1 I As before suggested, I contemplate the application of my invention to the shaft cars rying the worm gear W and also to varlous other pinions and gears which, through excessive wear, no longer perform the functions for which they are intended.

By the extremely simple fastening means above described, it will be seen that the disks D may be caused to operate at proper intervals for holding the twine against movement, thereby allowing the machine to produce a tightly tied bundle and greatly increasing its efiiciency.

From the foregoing description, taken in connection with the accompanying drawings, the construction and operation of the invention will be readily understood without requiring a more extended explanation.

Various changes in form, proportion and minor details may be resorted to without cleparting from the spirit of the invention as claime i I Having thus described my invention, what I claim as new and desire to secure by Letters Patent is 1. In a device of the character described, the combination with a rotating twine holding disk and a shaft for driving the same, of a pinion on one end of the shaft and having a number of radial notches on its inner end and communicating with its bore, a projection on the shaft and entering one of the notches and a screw entering the end of the shaft and having its head overlying the outer end of the pinion.

2. In a device of the character described, the combination with a rotating twine holding diskand a shaft for driving the same, of a pinion on one end of the shaft and having a number of notches in its inner end and opening into its bore, a transverse key-passing through the shaft and projecting from opposite sides thereof, the projecting ends of said key entering two of the notches, and a screw entering the end of the shaft and havingits head overlying the outer end of the pinlon.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

WALTER PARLIAMENT.

Witnesses:

GEO. H. MARQUIS, E. A. LAMONT.

Copies of this patent may be obtained for five cents each, by addressing th Commissioner of Patents, Washington, D. G. 

